Abstract:
BACKGROUND:In kidney transplant recipients with alemtuzumab induction maintained on mycophenolate mofetil (MMF) immunosuppression, sirolimus (SRL) promotes significant expansion of circulating CD4+CD25high regulatory T cells (Treg). This might translate into more effective protection against chronic graft injury compared to cyclosporin A (CsA), which, in the same clinical setting, does not affect Treg. METHODS:To assess this hypothesis, in the extension of a single-center, prospective, randomized, open, blind endpoint study aimed to assess the effect of low-dose SRL or CsA on circulating Treg, we compared the outcomes of renal transplant recipients on SRL (n=11) or CsA (n=10) by per-protocol biopsies and serial measurements of glomerular filtration rate (GFR), renal plasma flow (RPF), and 24-hour proteinuria over 30 months posttransplant. RESULTS:Despite 4-fold higher CD4+CD25high Treg counts (22.1+/-12.2% vs. 5.7+/-4.2% of CD3+CD4+ T cells), SRL-treated patients, compared to CsA-treated patients, had a significantly higher tubular C4d staining score (1.1+/-0.6 vs. 0.2+/-0.3, P<0.01), with nonsignificant trends to higher chronic allograft damage index score (5.6+/-2.4 vs. 3.7+/-3.3), faster GFR (-2.92+/-0.33 vs. -0.28+/-0.44 ml/min/1.73 m2 per year), and RPF (-10.80+/-5.45 vs. -1.86+/-3.09 ml/min/1.73 m2 per year) decline, and more clinical proteinuria (n=6 vs. 4). There was no significant correlation between Treg counts and any considered outcome variable in the study group as a whole and within each cohort. CONCLUSIONS:These data suggest that, despite enhanced Treg expression, low-dose SRL combined to alemtuzumab induction and MMF-based steroid-free maintenance therapy, does not appreciably protect renal transplant recipients from chronic allograft injury and dysfunction.
journal_name
Transplantationjournal_title
Transplantationauthors
Ruggenenti P,Perico N,Gotti E,Cravedi P,D'Agati V,Gagliardini E,Abbate M,Gaspari F,Cattaneo D,Noris M,Casiraghi F,Todeschini M,Cugini D,Conti S,Remuzzi Gdoi
10.1097/01.tp.0000284808.28353.2csubject
Has Abstractpub_date
2007-10-27 00:00:00pages
956-64issue
8eissn
0041-1337issn
1534-6080pii
00007890-200710270-00007journal_volume
84pub_type
杂志文章,随机对照试验相关文献
TRANSPLANTATION文献大全abstract:BACKGROUND:Donor pigs transgenic for human decay-accelerating factor (hDAF) were used in a xenogeneic ex vivo liver perfusion model to study the effect of this modification on the development of hyperacute rejection. METHODS:Three transgenic pigs were hepatectomized after hypothermic portal and transaortal gravity per...
journal_title:Transplantation
pub_type: 杂志文章
doi:10.1097/00007890-199708150-00002
更新日期:1997-08-15 00:00:00
abstract:BACKGROUND:Currently, many transplantation centers do not follow former living kidney donors on a long-term basis. Several potential barriers have been identified to provide this follow-up of former living kidney donors, including concerns that donor insurance will not reimburse transplantation centers or primary care ...
journal_title:Transplantation
pub_type: 杂志文章
doi:10.1097/TP.0b013e31826cc9a1
更新日期:2012-11-27 00:00:00
abstract:BACKGROUND:Combined transplantation of the lungs and liver is indicated for patients who would not be expected to survive transplantation of either organ alone. No single center has accumulated a significant experience, and as a result the expectations for this operation in the current era are unknown. METHODS:Patient...
journal_title:Transplantation
pub_type: 杂志文章,meta分析,评审
doi:10.1097/01.tp.0000165717.23652.09
更新日期:2005-11-15 00:00:00
abstract:BACKGROUND:Functionally relevant polymorphisms in genes of the Th1 and Th2-inflammatory pathway influence the susceptibility to acute rejection (AR), chronic allograft nephropathy (CAN), and subclinical rejection (SR) as well as graft survival after renal transplantation. Because these findings have not been validated,...
journal_title:Transplantation
pub_type: 杂志文章
doi:10.1097/01.tp.0000285295.39275.3b
更新日期:2007-10-27 00:00:00
abstract:BACKGROUND:The prevalence of renal posttransplantation amputation and its impact on allograft and patient survival have not been widely reported. METHODS:We used an incident cohort of patients who underwent renal transplantation between June 2004 and September 2009. Amputation data were obtained using Medicare institu...
journal_title:Transplantation
pub_type: 杂志文章
doi:10.1097/TP.0b013e31828e72b4
更新日期:2013-05-27 00:00:00
abstract:BACKGROUND AND AIMS:Liver endothelial cells (LECs) perform an essential role in important pathophysiologic functions in the liver. Establishment of a human LEC line facilitates advances in LEC research. Here, we present immortalization of human LECs using retroviral gene transfer of simian virus 40 large T antigen (SV4...
journal_title:Transplantation
pub_type: 杂志文章
doi:10.1097/01.tp.0000124286.82961.7e
更新日期:2004-05-15 00:00:00
abstract:BACKGROUND:In clinical transplantation, "passenger" dendritic cells (DCs) in the allograft have been thought to induce allograft rejection. However, the presence of DCs in the normal human kidney is controversial. Most reports have relied on the examination of MHC class I and II antigen expression in combination with D...
journal_title:Transplantation
pub_type: 杂志文章
doi:10.1097/00007890-199804150-00025
更新日期:1998-04-15 00:00:00
abstract:BACKGROUND:We sought to compare the immunoreactive potential of human cord blood (CB) versus normal adult bone marrow (BM) versus mobilized blood (peripheral blood stem cells; PBSC) from cancer patients. METHODS:Forty mice were randomized to receive a range of doses of T cell-replete cell preparations from one of the ...
journal_title:Transplantation
pub_type: 杂志文章
doi:10.1097/00007890-199909150-00006
更新日期:1999-09-15 00:00:00
abstract::Adult bone marrow-derived mesenchymal stem cells (MSCs) are multipotential cells capable of regenerating injured tissues. In addition to their multipotency, MSCs inhibit natural killer cell cytotoxicity and T-lymphocyte alloproliferation. Several immunosuppressive mechanisms have been described, including indoleamine ...
journal_title:Transplantation
pub_type: 杂志文章
doi:10.1097/TP.0b013e3181a2a4b3
更新日期:2009-05-15 00:00:00
abstract:BACKGROUND:Ventricular assist devices (VADs) are increasingly being used in pediatric patients to provide long-term cardiac support. One potential complication of VAD therapy is the development of antibodies directed against human leukocyte antigens (HLA). This phenomenon has not been well described with the Berlin Hea...
journal_title:Transplantation
pub_type: 杂志文章
doi:10.1097/TP.0b013e3182925242
更新日期:2013-06-27 00:00:00
abstract:BACKGROUND:Immunosuppressive regimens for kidney transplantation which reduce the long-term burden of immunosuppression are attractive, but little data are available to judge the safety and efficacy of the different strategies used. We tested the hypothesis that the simple, cheap, regimen of alemtuzumab induction combi...
journal_title:Transplantation
pub_type: 杂志文章,随机对照试验
doi:10.1097/TP.0b013e31822ca7ca
更新日期:2011-10-15 00:00:00
abstract::A non-complement-binding monoclonal antibody, TA-1, recognizing determinants on human T lymphocytes, was linked to the plant seed toxin ricin, either the intact molecule or purified ricin A chain. Peripheral blood lymphocytes were pretreated with conjugate for 2 hr, washed, and then measured in vitro for T cell prolif...
journal_title:Transplantation
pub_type: 杂志文章
doi:10.1097/00007890-198404000-00015
更新日期:1984-04-01 00:00:00
abstract:BACKGROUND:Transplant vasculopathy in kidney and heart allografts is associated with marked elevation of endothelin-1 (ET-1), but a role for ET-1 in the pathogenesis of transplant vasculopathy and chronic rejection has not been established. We, therefore, tested whether inhibition of ET-1-converting enzyme by phosphora...
journal_title:Transplantation
pub_type: 杂志文章
doi:10.1097/00007890-199906270-00007
更新日期:1999-06-27 00:00:00
abstract::The recent introduction of a variety of techniques for removing T cells from bone marrow grafts has reduced the incidence of graft-versus-host disease (GVHD)-associated morbidity and mortality. Whether this advance will be translated into improved patient survival is unclear at present, mainly because these procedures...
journal_title:Transplantation
pub_type: 杂志文章
doi:10.1097/00007890-198704000-00009
更新日期:1987-04-01 00:00:00
abstract:BACKGROUND:Tolerogenic dendritic cells (Tol-DCs) play a critical role in inducing and maintaining tolerance. Recognizing that both T-cell inactivation and activation are contingent on signals provided by DCs and that graft-specific activated T cells are major mediators of transplant rejection, we aimed to create an env...
journal_title:Transplantation
pub_type: 杂志文章
doi:10.1097/TP.0b013e3182007bbf
更新日期:2010-12-27 00:00:00
abstract::Glucocorticoids (GC) inhibit IL-2 gene transcription by interfering with the binding of the nuclear factor activator protein-1 on the IL-2 promoter. Calcineurin, a Ca2+/calmodulin-dependent protein phosphatase, is an essential component of the T cell antigen receptor signal transduction pathway leading to IL-2 gene tr...
journal_title:Transplantation
pub_type: 杂志文章
doi:
更新日期:1995-05-15 00:00:00
abstract::To establish the impact of transplantation on the course of chronic hepatitis B liver disease we performed a prospective study of the clinical and pathological sequelae of hepatitis B disease in all 22 patients who had renal allografts that functioned for more than 1 year and who were hepatitis B surface antigen (HBsA...
journal_title:Transplantation
pub_type: 杂志文章
doi:10.1097/00007890-198506000-00007
更新日期:1985-06-01 00:00:00
abstract:INTRODUCTION:Anti-CD3-immunotoxin (alpha-CD3-IT) promotes allograft tolerance in nonhuman primates owing to efficient depletion of sessile and circulating T cells. Common side effects of vascular leak syndrome, hepatotoxicity, and nephrotoxicity have limited tolerability of other immunotoxins. We report on preclinical ...
journal_title:Transplantation
pub_type: 杂志文章,收录出版
doi:10.1097/00007890-199907270-00009
更新日期:1999-07-27 00:00:00
abstract:BACKGROUND:Human herpesvirus-6 (HHV-6) has been implicated in bone marrow suppression, interstitial pneumonitis, and fatal meningoencephalitis in bone marrow transplant (BMT) recipients. METHODS:We describe the case of a woman with acute myeloid leukemia in second remission who developed febrile meningoencephalitis 8 ...
journal_title:Transplantation
pub_type: 杂志文章
doi:10.1097/00007890-199805270-00024
更新日期:1998-05-27 00:00:00
abstract::The influence of ultraviolet (UVB) irradiation on the survival of H-2 class II-disparate skin grafts was studied in congenic mouse strains. Isolated skin was UVB irradiated in vitro at a dose of 40 mJ/cm2 from both sides to remove Ia immunogenicity. Immediately after irradiation the skin was transplanted onto the flan...
journal_title:Transplantation
pub_type: 杂志文章
doi:10.1097/00007890-198803000-00020
更新日期:1988-03-01 00:00:00
abstract::Sera obtained before transplantation from 52 consecutive renal allograft recipients were tested for antibody-dependent cell-mediated cytotoxicity (ADCC) and for complement-dependent cytotoxic antibodies (CDC). A D locus antigen-defined lymphoblastoid cell panel (B lymphoblastoid cell panel) was used as targets for the...
journal_title:Transplantation
pub_type: 杂志文章
doi:
更新日期:1979-05-01 00:00:00
abstract:BACKGROUND AND METHODS:To investigate the frequency of apoptosis and the expression of Fas/Fas ligand (FasL) in liver allografts, we examined 97 biopsy specimens from 62 patients after orthotopic liver transplantation. The results of the biopsies were as follows: acute allograft rejection (n=32); hepatitis C virus (HCV...
journal_title:Transplantation
pub_type: 杂志文章
doi:10.1097/00007890-199904150-00027
更新日期:1999-04-15 00:00:00
abstract:OBJECTIVES:Recent studies demonstrated that prolactin (PRL) has beneficial effects on beta cells for islet transplantation. We examined the effect of human recombinant PRL (rhPRL) supplementation to the culture media to determine its potential use in the context of clinical islet transplantation. MATERIALS AND METHODS...
journal_title:Transplantation
pub_type: 杂志文章
doi:10.1097/TP.0b013e3181d98af1
更新日期:2010-06-15 00:00:00
abstract:BACKGROUND:The authors studied the relationship between the dynamics of Epstein-Barr virus (EBV) load, CD8 T-cell activation and differentiation, and EBV-associated symptoms in 25 children after kidney transplantation (Tx). METHODS:Twenty-two patients were enrolled at the time of Tx and three at diagnosis of EBV-induc...
journal_title:Transplantation
pub_type: 杂志文章
doi:10.1097/01.tp.0000131168.21930.5c
更新日期:2004-06-15 00:00:00
abstract::: Hepatitis C virus (HCV) infection is common in solid organ allograft recipients and is a significant cause of morbidity and mortality after transplantation, so effective management will improve outcomes. In this review, we discuss the extent of the problem associated with HCV infection in donors and kidney, heart, a...
journal_title:Transplantation
pub_type: 杂志文章,评审
doi:10.1097/TP.0b013e318273fec4
更新日期:2013-03-27 00:00:00
abstract:BACKGROUND:Solitary pancreas transplants, both pancreas transplant alone (PTA) and pancreas after kidney (PAK), have higher rejection rates and lower graft survivals than simultaneous pancreas-kidney transplants (SPK). The aim of this study is to compare three different antibody induction regimens in solitary pancreas ...
journal_title:Transplantation
pub_type: 杂志文章
doi:10.1097/00007890-200111270-00017
更新日期:2001-11-27 00:00:00
abstract::A considerable amount of data indicates that transplanted patients are at increased risk for de novo and recurrent cancer. Treatment of this population is difficult. It remains unclear if the immunosuppressive therapy should be continued, tapered or even stopped or if immunosuppressive drugs with antiproliferative pro...
journal_title:Transplantation
pub_type: 杂志文章,评审
doi:10.1097/01.tp.0000186912.23630.85
更新日期:2005-09-27 00:00:00
abstract::Nonmajor histocompatibility complex (non-MHC) antigens are important targets of graft rejection and graft-versus-host disease in clinical transplantation. Little is known regarding immunity to non-MHC antigens. To study this problem we evaluated the effect of antihuman thymocyte globulin (ATG) on reactivity in autolog...
journal_title:Transplantation
pub_type: 杂志文章
doi:10.1097/00007890-198102000-00001
更新日期:1981-02-01 00:00:00
abstract::Athymic PVG-rnu/rnu (RT1c) rats were grafted with skin bearing isolated MHC disparities 7-14 days in advance of cell transfer. The ability of naive CD4+ or CD8+ thoracic duct lymphocytes to induce rejection was assessed by adoptive transfer of one or both T cell subsets into nude recipients bearing congenic PVG.r1 (MH...
journal_title:Transplantation
pub_type: 杂志文章
doi:
更新日期:1990-10-01 00:00:00
abstract:BACKGROUND:Insults to the airway epithelium play a key role in constrictive bronchiolitis after lung transplantation, the typical hallmark of chronic rejection. Our hypothesis is that immunosuppressives might affect airway integrity. METHODS:A biculture of human bronchial epithelial cells and lung microvascular endoth...
journal_title:Transplantation
pub_type: 杂志文章
doi:10.1097/TP.0000000000001809
更新日期:2017-12-01 00:00:00